CN114000867A - Shallow water underwater flowmeter - Google Patents
Shallow water underwater flowmeter Download PDFInfo
- Publication number
- CN114000867A CN114000867A CN202111328311.7A CN202111328311A CN114000867A CN 114000867 A CN114000867 A CN 114000867A CN 202111328311 A CN202111328311 A CN 202111328311A CN 114000867 A CN114000867 A CN 114000867A
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- bin
- seat
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 34
- 239000012530 fluid Substances 0.000 claims description 31
- 229910052790 beryllium Inorganic materials 0.000 claims description 25
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 25
- 238000002955 isolation Methods 0.000 claims description 24
- 230000006835 compression Effects 0.000 claims description 22
- 238000007906 compression Methods 0.000 claims description 22
- 230000005855 radiation Effects 0.000 claims description 22
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 9
- 238000009530 blood pressure measurement Methods 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 206010061258 Joint lock Diseases 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/001—Survey of boreholes or wells for underwater installation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a shallow water underwater flowmeter, which comprises a flowmeter main body, wherein a probe bin, a pressure measuring module, an electronic bin and the like are arranged on the flowmeter main body, the pressure measuring module comprises a differential pressure sensor and a differential pressure mounting seat, the differential pressure sensor is arranged on the differential pressure mounting seat, the differential pressure mounting seat is arranged on the outer wall of the flowmeter main body, two pressure detection ends of the differential pressure sensor are respectively connected with a pressure guiding hole in the flowmeter main body through a pressure guiding pipe assembly, and a pressure signal output line is connected with the electronic bin; the electronic bin and the probe bin are separated, and the electronic bin and the probe bin are connected with each other through a wiring harness adapter in a switching mode to form a data transmission cable. The adoption of the scheme has the obvious effects that the processing mode of the pressure leading hole and the structure of the pressure measuring module are simplified, so that the processing difficulty is reduced, and the maintenance is convenient; the electronic bin and the probe bin are isolated, the electronic bin is prevented from being influenced after the probe bin leaks and loses pressure, the pressure data transmission line directly enters the electronic bin, and the influence of unstable factors of the probe bin on the data line and data transmission is eliminated.
Description
Technical Field
The invention relates to an offshore petroleum engineering equipment instrument, in particular to an underwater metering device for offshore petroleum engineering.
Background
An underwater flow meter is a key device for measuring well flow of an ocean oil and gas well. Unlike multiphase flow meters used on land or drilling platforms, underwater flow meters are required to face more severe marine environments, and not only are accurate measurement of well flow of marine oil and gas wells realized, but also excellent corrosion resistance and sealing performance are required.
The radioactive source flowmeter is used as a novel underwater flowmeter and comprises a ray transmitting assembly, a ray receiving and detecting assembly, a pressure (differential pressure) detecting assembly, a temperature detecting assembly, an electronic element assembly and the like. Because the ray receiving detection bin is used for directly underwater multiphase flow, although a sealing structure is arranged on the ray receiving detection bin, the bin still has the risks of breakage and leakage, the operation of each cable in the ray receiving detection bin is influenced, the potential influence is caused on the bin of the electronic component assembly, and the situation similar to the situation is existed between two adjacent bins which need to be penetrated with a wire harness. Meanwhile, the pressure (differential pressure) detection assembly of the existing underwater flowmeter is complex in structure, and has a plurality of defects in the aspects of pressure tapping hole processing and pressure tapping structure design.
Disclosure of Invention
In view of the above, the present invention provides a shallow water underwater flow meter.
The technical scheme is as follows:
the utility model provides a flowmeter under shallow water, includes the flowmeter main part, has run through fluid measurement passageway in this flowmeter main part install ray emission module, probe storehouse and pressure measurement module in the flowmeter main part still install the electron storehouse on the probe storehouse, ray emission module sends the ray and passes fluid measurement passageway, the probe storehouse is surveyed and is acquireed and pass fluid measurement passageway's ray, its characterized in that:
the pressure measuring module comprises a differential pressure sensor and a differential pressure mounting seat, the differential pressure sensor is arranged on the differential pressure mounting seat, the differential pressure mounting seat is mounted on the outer wall of the flowmeter main body, two pressure guiding holes are further formed in the flowmeter main body, the inner ends of the pressure guiding holes are respectively communicated with the fluid metering channel, pressure guiding pipe assemblies are respectively inserted into the outer ends of the two pressure guiding holes, the output ends of the pressure guiding pipe assemblies are respectively connected with the pressure measuring end of the differential pressure sensor, and the pressure output end of the differential pressure sensor is connected with the electronic bin through a pressure signal output line;
the electronic cabin and the probe cabin are separated by a separating seat between the electronic cabin and the probe cabin, a wire harness through hole for communicating the electronic cabin and the probe cabin is formed in the separating seat, and a wire harness adapter is embedded in the wire harness through hole in a sealing mode.
Has the advantages that: the processing mode of the pressure guide hole and the structure of the pressure measurement module are simplified, so that the processing difficulty is reduced, and the maintenance is convenient; the electronic bin and the probe bin are isolated, the electronic bin is prevented from being influenced after the probe bin leaks and loses pressure, the pressure data transmission line directly enters the electronic bin, and the influence of unstable factors of the probe bin on the data line and data transmission is eliminated.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic plan view of the present invention;
fig. 3 is a schematic structural view of the differential pressure sensor 21;
FIG. 4 is a schematic diagram of the differential pressure mount 22;
FIG. 5 is a schematic view of a pressure inducing tube assembly;
fig. 6 is a schematic structural view of the pressure-introducing joint lock seat 30;
FIG. 7 is a cross-sectional view B-B of FIG. 2;
FIG. 8 is a cross-sectional view A-A of FIG. 2;
FIG. 9 is a schematic view of a connection structure of the electronic chamber x and the probe chamber y;
FIG. 10 is an enlarged view of the p-section of FIG. 9;
FIG. 11 is a schematic sectional view of the ray emitting module w and the probe chamber y;
FIG. 12 is a schematic structural diagram of a ray emission module w and a ray acquisition module;
fig. 13 is a schematic diagram showing the assembling relationship among the collimator w22, the first beryllium pad w23 and the first isolation seat w24, and among the compression ring y32, the second beryllium pad y33 and the second isolation seat y 34.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1 to 13, the shallow water underwater flow meter includes a flow meter main body 10, a fluid metering channel is penetrated through the flow meter main body 10, the fluid metering channel is located in a venturi channel, a ray emission module w, a probe chamber y and a pressure measurement module z are installed on the flow meter main body 10, an electronic chamber x is further installed on the probe chamber y, the ray emission module w emits rays and penetrates through the fluid metering channel, and the probe chamber y detects and obtains the rays penetrating through the fluid metering channel.
The flowmeter main body 10 is provided with a transmitting window and a probing window which are respectively arranged at two sides of the fluid metering channel, the inner end of the transmitting window is opposite to the inner end of the probing window and is respectively communicated with the fluid metering channel, the transmitting window is internally provided with the ray transmitting module w, the probe bin y is buckled on the probing window and is communicated with the probing window, the ray probing module is arranged in the probe bin y, and the ray probing module probes and receives rays passing through the fluid metering channel;
the ray emission module w comprises a radiation source group w21, a collimator w22 and a first isolation seat w24 which are sequentially arranged, the radiation source group w21 is fixed at the outer end of the emission window, the first isolation seat w24 is located at the inner end of the emission window, the collimator w22 is located between the first isolation seat w24 and the radiation source group w21, the first isolation seat w24 separates and seals the fluid metering channel and the emission window, the end face of the inner end of the first isolation seat w24 is flush with and adapted to the inner wall of the fluid metering channel, a first beryllium pad w23 is arranged between the collimator w22 and the first isolation seat w24, and the first isolation seat w24 is made of a titanium alloy material;
the ray exploring module comprises a probe assembly y31, a pressing ring y32 and a second isolating seat y34 which are sequentially arranged, the probe assembly y31 is fixed in the probe cabin y, the second isolating seat y34 is located at the inner end of the exploring window, the pressing ring y32 is located between the probe assembly y31 and the second isolating seat y34, the fluid metering channel and the exploring window are separated and sealed by the second isolating seat y34, the end face of the inner end of the second isolating seat y34 is flush with and adaptive to the inner wall of the fluid metering channel, a second beryllium pad y33 is arranged between the pressing ring y32 and the second isolating seat y34, and the second isolating seat y34 is made of a titanium alloy material.
The surface of the first isolation seat w24 facing the collimator w22 is provided with a first embedded counter bore, a first top block w221 matched with the first embedding counter bore is arranged on the collimator w22, a beryllium piece embedding opening is arranged on the first top block w221, the beryllium sheet embedding opening faces to the hole bottom of the first embedding counter bore, the first beryllium pad w23 is embedded in the beryllium sheet embedding opening and matched with the beryllium sheet embedding opening, the first top block w221 extends into the first embedded counterbore, the extending end of the first top block w221 abuts against the bottom of the first embedded counterbore, the first beryllium pad w23 abuts against the bottom of the first embedded counter bore, a collimation hole w22a penetrates through the collimator w22, one end of the collimation hole w22a is large in aperture, the other end of the collimation hole w22 is small in aperture, the small hole end of the collimation hole w22a faces to the radiation source group w21, and the large hole end of the collimation hole w22a is communicated with the beryllium sheet embedding opening and faces to the first beryllium pad w 23;
a second embedded counter bore is arranged on the surface of the second isolation seat y34 facing the compression ring y32, the second beryllium pad y33 is embedded in the second embedded counter bore and matched with the second embedded counter bore, the compression ring y32 compresses the second beryllium pad y33 and the second isolation seat y34 at the same time, the second embedded counter bore comprises a round hole section and a round platform hole section, the round hole section is close to the fluid metering channel, the round platform hole section faces the compression ring y32, the second beryllium pad y33 is embedded in the round hole section, a circle of compression flange y321 is arranged on the end face of the compression ring y32 facing the second embedded counter bore, the compression flange y321 is close to the inner ring of the compression ring y32, the inner ring of the compression flange y321 is flush with the inner ring of the compression ring y32, the compression flange y321 is embedded in the round platform hole section, and the outer ring of the compression flange y321 is matched with the hole wall of the round platform hole section and matched with each other, the embedded end face of the pressing flange y321 presses the second beryllium pad y33, and the pressing ring y32 and the outer ring of the pressing flange y321 press the second isolation seat y 34;
the thickness of the second beryllium pad y33 is greater than the thickness of the first beryllium pad w 23.
The electronic bin x comprises a bin 71, one end of the bin 71 is sealed, a bin flange 72 is fixed at the other end of the bin 71, the inner ring of the bin flange 72 is matched with the inner wall of the bin 71, the probe bin y is cylindrical, the outer diameter of the probe bin y is equal to that of the bin flange 72, and the bin flange 72 is coaxially and fixedly installed with the probe bin y through bolts;
at least one pressure signal introducing hole radially runs through on the bin flange plate 72 the outer end of the pressure signal introducing hole is respectively provided with a pressure signal adapter 61 in a sealing way, and the outer circumferential surface of the bin flange plate 72 is surrounded by the outer end of the pressure signal introducing hole and is provided with an abutting plane.
A separating seat 51 for separating the electronic cabin x from the probe cabin y is arranged between the electronic cabin x and the probe cabin y, the separating seat 51 can be arranged independently, or can be formed by a shell of the probe cabin y, a wiring harness through hole 5c for communicating the electronic cabin x with the probe cabin y is arranged on the separating seat 51, and a wiring harness adapter 52 is embedded in the wiring harness through hole 5c in a sealing manner.
The wire harness through hole 5c comprises a through hole section and a through hole section which are axially communicated, wherein the aperture of the through hole section is larger than that of the through hole section, the wire harness adapter 52 comprises a cylindrical adapter body, the adapter body is embedded in the through hole section, and the inner end face of the adapter body abuts against the hole bottom of the through hole section; an adapter pressing assembly is further arranged on the separating seat 51 and axially presses the wiring harness adapter 52; the wire harness adapter 52 is further provided with a radial sealing assembly, and the radial sealing assembly is matched with the wire harness through hole 5c to play a sealing role.
The adapter pressing assembly comprises a pressing flange 53 arranged on the separating seat 51, a joint through hole is formed in the pressing flange 53 and is axially communicated with the via hole section, the aperture of the joint through hole is smaller than the diameter of the joint body, and the pressing flange 53 is tightly abutted to the outer end face of the joint body;
a flange counter bore is formed in the separating seat 51 around the outer end of the via hole section, the pressing flange 53 falls in the flange counter bore, and the pressing flange 53 is fixed to the bottom of the flange counter bore through bolts; a wiring harness plug axially penetrates through the joint body, the wiring harness plug respectively penetrates out of the end faces of the two ends of the joint body, and the two ends of the wiring harness plug respectively extend into one section of the through hole and the joint through hole;
the radial sealing assembly comprises at least one second sealing ring, a second sealing groove is annularly arranged on the outer wall of the joint body, and the second sealing ring is sleeved in the second sealing groove and tightly abutted to the hole wall of the via hole section.
The pressure measurement module z comprises a differential pressure sensor 21 and a differential pressure mounting base 22, the differential pressure sensor 21 is arranged on the differential pressure mounting base 22, the differential pressure mounting base 22 is arranged on the outer wall of the flowmeter main body 10, the flowmeter main body 10 is also provided with two pressure guiding holes 11, the two pressure guiding holes 11 radially penetrate through the flowmeter main body 10, the central connecting line of the two pressure guiding holes 11 is parallel to the axial direction of the fluid metering channel, the inner ends of the pressure guiding holes 11 are respectively communicated with the fluid metering channel, pressure guiding pipe assemblies are respectively inserted into the outer ends of the two pressure guiding holes 11, the output ends of the pressure guiding pipe assemblies are respectively connected with the pressure measurement ends of the differential pressure sensor 21, and the pressure output ends of the differential pressure sensor 21 are connected with the pressure signal adapter 61 through a pressure signal output line 55;
the differential pressure sensor 21 comprises a differential pressure gauge body 211 and a signal transmission connector 212 fixed on the differential pressure gauge body, a differential pressure gauge clamping groove 22a corresponding to the differential pressure gauge body 211 and a pressure line transmission through hole 22b corresponding to the signal transmission connector 212 are arranged on the differential pressure mounting base 22, one end of the pressure line transmission through hole 22b is communicated with the differential pressure gauge clamping groove 22a, the other end of the pressure line transmission through hole 22b penetrates out of the differential pressure mounting base 22, the differential pressure gauge body 211 is embedded in the differential pressure gauge clamping groove 22a, the signal transmission connector 212 penetrates out of the pressure line transmission through hole 22b, the signal transmission connector 212 is connected with one end of a pressure signal output line 55, and the differential pressure mounting base 22 is fixed on the outer wall of the flowmeter main body 10.
The pressure guiding pipe assembly comprises a pressure guiding pipe connector 23 and a pressure guiding pipe body 24, the pressure guiding pipe connector 23 comprises a pressure guiding pipe connecting section 231 and a connecting hole embedding section 232 which are sequentially connected along the axial direction, at least part of the connecting hole embedding section 232 protrudes out of the pressure guiding pipe connecting section 231 along the circumferential direction, two ends of the pressure guiding pipe 24 are respectively communicated with the differential pressure sensor 21 and the corresponding pressure guiding pipe connecting section 231, and a pressure guiding pipe connector locking seat 30 matched with the corresponding pressure guiding hole 11 is sleeved on the pressure guiding pipe connecting section 231;
when the pressure guiding joint locking seat 30 is locked on the pressure guiding hole 11, the connecting hole inserting section 232 can be limited between the inserting end of the pressure guiding joint locking seat 30 and the hole bottom of the pressure guiding hole 11, and the gap between the outer peripheral surface of the pressure guiding pipe connecting section 231 and the hole wall of the pressure guiding hole 11 can be sealed.
The pressure-inducing hole 11 comprises a screw hole, an inserting hole, a shaft sealing hole and a flow-passing hole which are sequentially communicated in the axial direction, wherein the shaft sealing hole is in a circular truncated cone shape, the front end of the connecting hole inserting section 232 is provided with a circular truncated cone-shaped first shaft sealing surface matched with the shaft seal hole, the front end of the connecting hole inserting section 232 is inserted into the shaft seal hole, the first shaft sealing surface is attached to the shaft seal hole and is axially compressed, the middle part of the connecting hole inserting section 232 is inserted into the inserting hole, and the tail part of the connecting hole inserting section 232 is positioned in the screw hole;
draw and press joint locking seat 30 to include the screw section 32 that the hexagon nut section 31 and the screw hole suit that connect gradually along the axial draw and press the joint locking seat 30 on the axial run-through have connect mounting hole 33, draw and press joint locking seat 30 cover to establish on the sealed pressure pipe connection section 231 that draws, screw section 32 screw thread is located soon the screw is downthehole, screw section 32 with the afterbody axial of section 232 is put into to the connecting hole supports tightly.
A second shaft cover in a circular truncated cone shape is arranged at the tail end of the connecting hole embedding section 232, a circular truncated cone-shaped axial pressing surface matched with the second shaft cover is arranged in the joint mounting hole 33, and the axial pressing surface and the second shaft cover are axially pressed;
a first radial seal groove is further annularly arranged in the middle of the connecting hole imbedding section 232, a first seal ring is arranged in the first radial seal groove, and the first seal ring is tightly attached to the inner wall of the imbedding hole.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a flowmeter under shallow water, includes flowmeter main part (10), has run through fluid measurement passageway on this flowmeter main part (10) install ray emission module (w), probe storehouse (y) and pressure measurement module (z) on flowmeter main part (10) still install electron storehouse (x) on probe storehouse (y), ray emission module (w) send the ray and pass fluid measurement passageway, probe storehouse (y) are surveyed and are acquireed and pass the ray of fluid measurement passageway, its characterized in that:
the pressure measurement module (z) comprises a differential pressure sensor (21) and a differential pressure mounting seat (22), the differential pressure sensor (21) is arranged on the differential pressure mounting seat (22), the differential pressure mounting seat (22) is mounted on the outer wall of the flowmeter main body (10), the flowmeter main body (10) is further provided with two pressure guide holes (11), the inner ends of the pressure guide holes (11) are communicated with the fluid metering channel respectively, pressure guide pipe assemblies are inserted into the outer ends of the two pressure guide holes (11) respectively, the output ends of the pressure guide pipe assemblies are connected with the pressure measurement end of the differential pressure sensor (21) respectively, and the pressure output end of the differential pressure sensor (21) is connected with the electronic bin (x) through a pressure signal output line (55);
the electronic cabin (x) and the probe cabin (y) are separated by a separating seat (51) between the electronic cabin (x) and the probe cabin (y), a wiring harness through hole (5c) for communicating the electronic cabin (x) and the probe cabin (y) is formed in the separating seat (51), and a wiring harness adapter (52) is embedded in the wiring harness through hole (5c) in a sealing mode.
2. The shallow water underwater flow meter of claim 1, wherein: the two pressure guide holes (11) radially penetrate through the flowmeter main body (10), and the central connecting line of the two pressure guide holes (11) is parallel to the axial direction of the fluid metering channel;
the differential pressure sensor (21) comprises a differential pressure gauge body (211) and a signal transmission joint (212) fixed on the differential pressure gauge body, a differential pressure gauge clamping groove (22a) corresponding to the differential pressure gauge body (211) and a pressure line transmission through hole (22b) corresponding to the signal transmission connector (212) are arranged on the differential pressure mounting seat (22), one end of the pressure line transmission through hole (22b) is communicated with the pressure difference meter clamping groove (22a), the other end of the pressure line transmission through hole (22b) penetrates out of the differential pressure mounting seat (22), the differential pressure gauge body (211) is embedded in the differential pressure gauge clamping groove (22a), the signal transmission joint (212) penetrates out of the pressure line transmission through hole (22b), the signal transmission joint (212) is connected with one end of the pressure signal output line (55), the differential pressure mounting seat (22) is fixed on the outer wall of the flowmeter main body (10).
3. The shallow water underwater flow meter of claim 2, wherein: the pressure guiding pipe assembly comprises a pressure guiding pipe connector (23) and a pressure guiding pipe body (24), the pressure guiding pipe connector (23) comprises a pressure guiding pipe connecting section (231) and a connecting hole embedding section (232) which are sequentially connected along the axial direction, at least part of the connecting hole embedding section (232) protrudes out of the pressure guiding pipe connecting section (231) along the circumferential direction, two ends of the pressure guiding pipe (24) are respectively communicated with the differential pressure sensor (21) and the corresponding pressure guiding pipe connecting section (231), and a pressure guiding pipe connector locking seat (30) matched with the corresponding pressure guiding hole (11) is sleeved on the pressure guiding pipe connecting section (231);
when the pressure guiding joint locking seat (30) is locked on the pressure guiding hole (11), the connecting hole embedding section (232) can be limited between the insertion end of the pressure guiding joint locking seat (30) and the hole bottom of the pressure guiding hole (11), and a gap between the outer peripheral surface of the pressure guiding pipe connecting section (231) and the hole wall of the pressure guiding hole (11) is sealed.
4. The shallow water underwater flow meter of claim 3, wherein: the pressure guiding hole (11) comprises a screw hole, an inserting hole, a shaft sealing hole and a flow passing hole which are sequentially communicated in the axial direction, wherein the shaft sealing hole is in a circular truncated cone shape, the front end of the connecting hole inserting section (232) is provided with a circular truncated cone-shaped first shaft sealing surface matched with the shaft seal hole, the front end of the connecting hole inserting section (232) is inserted into the shaft seal hole, the first shaft sealing surface is attached to the shaft seal hole and is axially compressed, the middle part of the connecting hole inserting section (232) is inserted into the inserting hole, and the tail part of the connecting hole inserting section (232) is positioned in the screw hole;
draw and press joint locking seat (30) including screw section (32) that hexagon nut section (31) and screw hole suit that connect gradually along the axial draw and press joint locking seat (30) go up the axial and run through and have connect mounting hole (33), it establishes to draw and press joint locking seat (30) cover sealed draw on the pipe linkage segment (231), screw section (32) screw thread is located soon the screw hole is downthehole, screw section (32) with the afterbody axial of section (232) is put into to the connecting hole supports tightly.
5. The shallow water underwater flow meter of claim 4, wherein: a second shaft cover in a circular truncated cone shape is arranged at the tail end of the connecting hole embedding section (232), a circular truncated cone-shaped axial pressing surface matched with the second shaft cover is arranged in the joint mounting hole (33), and the axial pressing surface and the second shaft cover are axially pressed;
the middle part of the connecting hole imbedding section (232) is also provided with a first radial sealing groove in an annular manner, a first sealing ring is arranged in the first radial sealing groove, and the first sealing ring is tightly attached to the inner wall of the imbedding hole.
6. The shallow water underwater flow meter of claim 1, 2, 3, 4 or 5, wherein: the wire harness through hole (5c) comprises a through hole section and a through hole section which are axially communicated, wherein the aperture of the through hole section is larger than that of the through hole section, the wire harness adapter (52) comprises a cylindrical adapter body, the adapter body is embedded in the through hole section, and the inner end face of the adapter body abuts against the hole bottom of the through hole section;
an adapter pressing assembly is further arranged on the separating seat (51), and the adapter pressing assembly axially presses the wiring harness adapter (52);
and a radial sealing assembly is further arranged on the wiring harness adapter (52), and the radial sealing assembly is matched with the wiring harness through hole (5c) to play a sealing role.
7. The shallow water underwater flow meter of claim 6, wherein: the adapter pressing assembly comprises a pressing flange (53) installed on the separating seat (51), a connector through hole is formed in the pressing flange (53), the connector through hole is axially communicated with the through hole two-section, the aperture of the connector through hole is smaller than the diameter of the connector body, and the pressing flange (53) is abutted against the end face of the outer end of the connector body;
a flange counter bore is formed in the separating seat (51) around the outer end of the via hole section, the pressing flange (53) falls in the flange counter bore, and the pressing flange (53) is fixed to the bottom of the flange counter bore through bolts;
a wiring harness plug axially penetrates through the joint body, the wiring harness plug respectively penetrates out of the end faces of the two ends of the joint body, and the two ends of the wiring harness plug respectively extend into one section of the through hole and the joint through hole;
the radial sealing assembly comprises at least one second sealing ring, a second sealing groove is annularly arranged on the outer wall of the joint body, and the second sealing ring is sleeved in the second sealing groove and tightly abutted to the hole wall of the via hole section.
8. The shallow water underwater flow meter of claim 6, wherein: the electronic bin (x) comprises a bin barrel (71), one end of the bin barrel (71) is sealed, a bin barrel flange plate (72) is fixed at the other end of the bin barrel (71), the inner ring of the bin barrel flange plate (72) is matched with the inner barrel wall of the bin barrel (71), and the bin barrel flange plate (72) is installed on the outer wall of the probe bin (y) through bolts;
a pressure signal introducing hole radially penetrates through the bin flange plate (72), a pressure signal adapter (61) is hermetically arranged at the outer end of the pressure signal introducing hole, and one end of the pressure signal output line (55) is connected with the pressure signal adapter (61);
an abutting plane is arranged on the outer circumferential surface of the bin flange plate (72) around the outer end of the pressure signal introduction hole;
the probe bin (y) is cylindrical, the outer diameter of the probe bin (y) is equal to that of the bin sleeve flange plate (72), and the bin sleeve flange plate (72) and the probe bin (y) are coaxially and fixedly installed.
9. The shallow water underwater flow meter of claim 1, 2, 3, 4 or 5, wherein: the flow meter comprises a flow meter main body (10), a radiation emission module (w) and a radiation acquisition module, wherein the radiation emission window and the radiation acquisition window are arranged on two sides of the fluid metering channel respectively, the inner end of the radiation emission window is opposite to the inner end of the radiation acquisition window and is communicated with the fluid metering channel respectively, the radiation emission module (w) is installed in the radiation emission window, a probe cabin (y) is buckled on the radiation acquisition window and is communicated with the radiation emission window, the radiation acquisition module is installed in the probe cabin (y), and the radiation acquisition module acquires and receives radiation passing through the fluid metering channel;
the ray emission module (w) comprises a radiation source group (w21), a collimator (w22) and a first isolation seat (w24), the radiation source group (w21) is fixed at the outer end of the emission window, the first isolation seat (w24) is located at the inner end of the emission window, the collimator (w22) is located between the first isolation seat (w24) and the radiation source group (w21), the first isolation seat (w24) separates and seals the fluid metering channel and the emission window, the end face of the inner end of the first isolation seat (w24) is flush with and adaptive to the inner wall of the fluid metering channel, a first beryllium pad (w23) is arranged between the collimator (w22) and the first isolation seat (w24), and the first isolation seat (w24) is made of titanium alloy;
the ray exploring module comprises a probe assembly (y31), a pressing ring (y32) and a second isolating seat (y34), the probe assembly (y31) is fixed in the probe cabin (y), the second isolating seat (y34) is located at the inner end of the exploring window, the pressing ring (y32) is located between the probe assembly (y31) and the second isolating seat (y34), the fluid metering channel and the exploring window are separated and sealed by the second isolating seat (y34), the end face of the inner end of the second isolating seat (y34) is flush with and adaptive to the inner wall of the fluid metering channel, a second beryllium pad (y33) is arranged between the pressing ring (y32) and the second isolating seat (y34), and the second isolating seat (y34) is made of titanium alloy.
10. The shallow water underwater flow meter of claim 9, wherein: a first embedding counter bore is arranged on the surface of the first isolation seat (w24) facing the collimator (w22), a first top block (w221) matched with the first embedding counter bore is arranged on the collimator (w22), a beryllium sheet embedding opening is arranged on the first top block (w221), the beryllium sheet embedding opening faces the hole bottom of the first embedding counter bore, a first beryllium pad (w23) is embedded in the beryllium sheet embedding opening and matched with the beryllium sheet embedding opening, the first top block (w221) extends into the first embedding counter bore, the extending end of the first top block (w221) abuts against the hole bottom of the first embedding counter bore, the first beryllium pad (w23) abuts against the hole bottom of the first embedding counter bore, an alignment hole (w22a) penetrates through the collimator (w22), one end of the alignment hole (w22a) is large in aperture, the other end of the alignment hole (w a) is small in aperture, and the radiation end (w21) of the alignment hole (w22a) faces the radiation source group 21), the large hole end of the collimation hole (w22a) is communicated with the beryllium sheet embedding opening and faces to the first beryllium pad (w 23);
a second embedding counter bore is formed in the surface, facing the compression ring (y32), of the second isolation seat (y34), the second beryllium pad (y33) is embedded in the second embedding counter bore and matched with the second embedding counter bore, the compression ring (y32) compresses the second beryllium pad (y33) and the second isolation seat (y34) at the same time, the second embedding counter bore comprises a round hole section and a round platform hole section, the round hole section is close to the fluid metering channel, the round platform hole section faces the compression ring (y32), the second beryllium pad (y33) is embedded in the round hole section, a circle of compression flange (y321) is arranged on the end face, facing the second embedding counter bore, of the compression ring (y32), the compression flange (y321) is close to the inner ring of the compression ring (y32), the inner ring of the compression flange (y321) is flush with the inner ring of the compression ring (y32), and the compression flange (y321) is embedded in the round platform hole section, the outer ring of the pressing flange (y321) is matched with the hole wall of the circular truncated cone hole section, the embedded end face of the pressing flange (y321) presses the second beryllium pad (y33), and the pressing ring (y32) and the outer ring of the pressing flange (y321) press the second isolation seat (y 34);
the thickness of the second beryllium pad (y33) is greater than the thickness of the first beryllium pad (w 23).
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| CN114046830A (en) * | 2021-11-10 | 2022-02-15 | 海默科技（集团）股份有限公司 | Flowmeter metering parameter detection system |
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| CN114000867B (en) | 2024-02-02 |
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